SIST-TS CEN/TS 16663:2017

Durability of wood and wood-based products - Determination of emissions from preservative treated wood to the environment - Wooden commodities exposed in Use Class 3 (Not covered, not in contact with the ground) - Semi-field method

This European Standard specifies a method for determining the leaching of active ingredients or other compounds from preservative treated wood by a semi field method for Use Class 3 (outdoor above ground). The preservative treated wood can be tested with or without subsequently surface coating or other water-repellent treatment. The method is applicable to the testing of commercial or experimental preservatives or paint systems applied to non-durable timber by methods appropriate to commercial practice.

Dauerhaftigkeit von Holz und Holzprodukten - Abschätzung von Emissionen von mit Holzschutzmitteln behandeltem Holz an die Umwelt - Holzprodukte in Gebrauchsklasse 3 (nicht abgedeckt, ohne Erdkontakt) - Semi-Feldverfahren

Diese Technische Spezifikation legt ein Verfahren zur Bestimmung der Auswaschung von Wirkstoffen oder sonstigen Verbindungen aus dem behandelten Holz durch ein Semi-Feldverfahren für Holzprodukte der Gebrauchsklasse 3 (im Freien, nicht abgedeckt, ohne Erdkontakt) fest. Das mit Holzschutzmittel behandelte Holz kann mit oder ohne nachfolgende Oberflächenbeschichtung oder sonstige wasserabweisende Behandlung geprüft werden. Das Verfahren gilt für die Prüfung handelsüblicher oder experimenteller Holzschutzmittel oder Anstrichsysteme, die nach in der gewerblichen Praxis üblichen Verfahren auf Holz aufgetragen werden.

Durabilité du bois et des matériaux dérivés du bois - Détermination des émissions dans l'environnement du bois traité avec des produits de préservation - Produits de base en bois exposés à la classe d'emploi n° 3 (dans un endroit abrité, n'étant pas en contact avec le sol) - Méthode semi-terrain

Cette spécification technique européenne décrit une méthode de détermination du délavage de matières actives ou d'autres composés issus du bois traité avec des produits de préservation par une méthode semi-terrain pour classe d'emploi 3 (à l'extérieur au-dessus du sol). Le bois traité avec des produits de préservation peut être soumis à essai avec ou sans revêtement de surface ou traitement hydrofuge ultérieur. La méthode s'applique à l'essai de produits de préservation ou de systèmes de peinture au stade commercial ou expérimental, appliqués sur des bois non durables par des méthodes adaptées aux pratiques du commerce.

Trajnost lesa in lesnih izdelkov - Določanje emisij iz zaščitenega lesa v okolje - Lesni izdelki, izpostavljeni 3. razredu uporabe (niso pokriti, niso v stiku s tlemi) - Delno terenska metoda

Ta evropski standard določa metodo za določevanje izpiranja aktivnih sestavin ali drugih spojin z zaščitenega lesa z delno terensko metodo za 3. razred uporabe (na prostem nad tlemi). Zaščiteni les se lahko preskuša z ali brez naknadnega površinskega premazovanja ali druge obdelave, ki les zaščiti pred vodo. Metoda se uporablja za preskušanje komercialnih in eksperimentalnih zaščitnih sredstev ali barvnih sistemov, ki se jih nanese na neobstojni les z metodami, primernimi za komercialno prakso.

General Information

• Status: Published
• Public Enquiry End Date: 01-Jul-2016
• Publication Date: 19-Feb-2017
• ICS: 13.020.30 - Environmental impact assessment
• ICS: 71.100.50 - Wood-protecting chemicals
• Technical Committee: LLZ - Les, lesni izdelki in zaščita lesa
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2016
• Due Date: 05-Feb-2017
• Completion Date: 20-Feb-2017
• Ref Project: CEN/TS 16663:2016 - Durability of wood and wood-based products - Determination of emissions from preservative treated wood to the environment - Wooden commodities exposed in Use Class 3 (Not covered, not in contact with the ground) - Semi-field method

Relations

• Replaces: SIST-TP CEN/TR 16663:2014 - Durability of wood and wood-based products - Determination of emissions from preservative treated wood to the environment - Wooden commodities exposed in Use Class 3 (Not covered, not in contact with the ground) - Semi-field method
• Effective Date: 01-Mar-2017
• Replaces: SIST-TP CEN/TR 16663:2014 - Durability of wood and wood-based products - Determination of emissions from preservative treated wood to the environment - Wooden commodities exposed in Use Class 3 (Not covered, not in contact with the ground) - Semi-field method
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TS CEN/TS 16663:2017
01-marec-2017
1DGRPHãþD
SIST-TP CEN/TR 16663:2014
7UDMQRVWOHVDLQOHVQLKL]GHONRY'RORþDQMHHPLVLML]]DãþLWHQHJDOHVDYRNROMH
/HVQLL]GHONLL]SRVWDYOMHQLUD]UHGXXSRUDEHQLVRSRNULWLQLVRYVWLNXVWOHPL
'HOQRWHUHQVNDPHWRGD
Durability of wood and wood-based products - Determination of emissions from
preservative treated wood to the environment - Wooden commodities exposed in Use
Class 3 (Not covered, not in contact with the ground) - Semi-field method
Dauerhaftigkeit von Holz und Holzprodukten - Abschätzung von Emissionen von mit
Holzschutzmitteln behandeltem Holz an die Umwelt - Holzprodukte in Gebrauchsklasse
3 (nicht abgedeckt, ohne Erdkontakt) - Semi-Feldverfahren
Durabilité du bois et des matériaux dérivés du bois - Détermination des émissions dans
l'environnement du bois traité avec des produits de préservation - Produits de base en
bois exposés à la classe d'emploi n° 3 (dans un endroit abrité, n'étant pas en contact
avec le sol) - Méthode semi-terrain
Ta slovenski standard je istoveten z: CEN/TS 16663:2016
ICS:
13.020.30 Ocenjevanje vpliva na okolje Environmental impact
assessment
71.100.50 .HPLNDOLMH]D]DãþLWROHVD Wood-protecting chemicals
SIST-TS CEN/TS 16663:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST-TS CEN/TS 16663:2017

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SIST-TS CEN/TS 16663:2017


CEN/TS 16663
TECHNICAL SPECIFICATION

SPÉCIFICATION TECHNIQUE

November 2016
TECHNISCHE SPEZIFIKATION
ICS 13.020.30; 71.100.50 Supersedes CEN/TR 16663:2014
English Version

Durability of wood and wood-based products -
Determination of emissions from preservative treated
wood to the environment - Wooden commodities exposed
in Use Class 3 (Not covered, not in contact with the
ground) - Semi-field method
Durabilité du bois et des matériaux dérivés du bois - Dauerhaftigkeit von Holz und Holzprodukten -
Détermination des émissions dans l'environnement du Abschätzung von Emissionen von mit
bois traité avec des produits de préservation - Produits Holzschutzmitteln behandeltem Holz an die Umwelt -
de base en bois exposés à la classe d'emploi n° 3 (dans Holzprodukte in Gebrauchsklasse 3 (nicht abgedeckt,
un endroit abrité, n'étant pas en contact avec le sol) - ohne Erdkontakt) - Semi-Feldverfahren
Méthode semi-terrain
This Technical Specification (CEN/TS) was approved by CEN on 22 August 2016 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 16663:2016 E
worldwide for CEN national Members.

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SIST-TS CEN/TS 16663:2017
CEN/TS 16663:2016 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Description of the test method . 5
3.1 Principle . 5
3.2 Quality criteria . 5
3.3 Wood preservative . 5
3.4 Apparatus . 6
3.5 Test specimens . 7
3.5.1 General . 7
3.5.2 Species of wood . 7
3.5.3 Quality of wood and wood moisture content . 7
3.5.4 Preparation of test specimens . 8
3.5.5 Number of test specimens . 8
3.5.6 End seal . 8
3.6 Procedure. 8
3.6.1 Product under test . 8
3.6.2 Treatment and handling of test specimens . 8
3.6.3 Untreated controls (optional) . 9
3.6.4 Exposure test site . 9
3.6.5 Duration of the test . 9
3.6.6 Collection of the leachates . 9
3.6.7 Chemical analysis . 10
3.7 Expression of results . 10
4 Test report . 10
Annex A (informative) Test set-up and weather rack . 12
A.1 Vertical exposure . 12
Figure A.1 - Test set-up for vertical exposure . 12
Figure A.2 — Vertically oriented test series . 13
Figure A.3 — Attachment of the panels for the test set-up . 13
A.2 Horizontal exposure. 14
Figure A.4 — Sectional view panels exposed horizontally . 14
Annex B (informative) Model treatments . 15
B.1 For preservative intended for superficial treatment . 15
B.2 For preservative intended for penetration treatment . 15
Annex C (informative) Orientation of annual growth rings and accepted heartwood . 16
Figure C.1 — Example on the orientation of annual growth rings. 16
Annex D (informative) Stability study . 17
Bibliography . 18
2

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SIST-TS CEN/TS 16663:2017
CEN/TS 16663:2016 (E)
European foreword
This document (CEN/TS 16663:2016) has been prepared by Technical Committee CEN/TC 38
“Durability of wood and wood-based products”, the secretariat of which is held by AFNOR.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TR 16663:2014.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to announce this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
3

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SIST-TS CEN/TS 16663:2017
CEN/TS 16663:2016 (E)
Introduction
The leaching from preservative treated wood into the environment needs to be quantified to enable an
environmental risk assessment to be made of the treated wood, e.g. according to the Biocidal Products
Regulation, 528/2012. This document describes a semi-field method for the determination of leachate
from preservative treated wood where the preservative treated wood is not covered and not in contact
with the ground or water (use class 3 according to EN 335).
The method is a semi-field procedure for obtaining water samples (leachate) from treated wood
exposed out of ground contact, during natural exposure. The quantities of emissions in the leachate are
related to the surface area of the wood and can be used in scenarios for the environmental risk
assessment of the treated wood.
NOTE The leachate can also be tested for eco-toxicological effects (example: OECD 202 testing on Daphnia
sp.).
4

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SIST-TS CEN/TS 16663:2017
CEN/TS 16663:2016 (E)
1 Scope
This Technical Specification specifies a method for determining the leaching of active ingredients or
other compounds from treated wood by a semi-field method for use class 3 (outdoor above ground).
The preservative treated wood can be tested with or without subsequently surface coating or other
water-repellent treatment. The method is applicable to the testing of commercial or experimental
preservatives or paint systems applied to timber by methods appropriate to commercial practice.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 5667-3, Water quality - Sampling - Part 3: Preservation and handling of water samples (ISO 5667-
3)
3 Description of the test method
3.1 Principle
Panels are treated, assembled and placed outdoors, out of ground contact and exposed to the normal
environmental and ecological factors which affect preservative treated wood so exposed in practice.
The rainwater is retained and the leachate is monitored by chemical analyses of the active ingredients
and/or other compounds.
3.2 Quality criteria
The validity of the analytical method for the substances in question should be determined before
conducting the test:
a) accuracy;
b) specificity;
c) limit of detection (LOD);
d) limit of quantification (LOQ);
e) precision.
NOTE 1 EN ISO 5667-3 may give guidance on the preservation and handling of water samples.
NOTE 2 This may include CAS no or chemical formulation.
3.3 Wood preservative
The test report shall state the name and other designation of the tested product, and the trade or
common name of the active ingredient(s) as defined in the regulation n°528/2012.
Use of a coating is possible (identity and amount of coating used shall be stated in the test report).
5

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SIST-TS CEN/TS 16663:2017
CEN/TS 16663:2016 (E)
3.4 Apparatus
3.4.1 Vessel for receiving water
Laboratory brown glass flask or plastic jars with no impurities that can influence the active ingredient.
NOTE EN ISO 5667-3 gives the good practices to preserve water samples.
The brown glass flask or plastic jars shall be protected from heat and sunlight.
The capacity of the vessels depends on the exposure scenario. If the expected annual precipitation is
approximately 700 mm and the test set-up is placed horizontal 25 l containers are recommended. If the
test set-ups are exposed vertically 5 l containers are recommended.
3.4.2 Gutter, screws, hooks
All materials used to fix and support the panels and collect the rainwater shall be made of inert
materials. Stainless steel has been found to be suitable (see Annex A).
3.4.3 Weather station
A weather station capable of monitoring the quantity of rainfall, the wind direction and wind speed at
the test site shall be used.
3.4.4 Wood working equipment
Equipment capable of producing the desired finish of the surface; e.g. fine sawn or planed.
3.4.5 Condition chamber
Conditioning chamber, well ventilated, controlled at (20 ± 2) °C and (65 ± 5) % relative humidity.
3.4.6 Mixing vessel
3.4.7 Preservative treatment
Equipment suitable for carrying out vacuum, vacuum-pressure, immersion or surface treatment of
specimens.
3.4.8 Balance
A balance capable of weighing to the nearest 0,1 g.
3.4.9 Kiln
A kiln suitable to dry the preservative treated timber after treatment and post treatment conditioning, if
required. The drying procedure shall follow recommendations from the supplier of the product under
test.
3.4.10 Safety equipment and protection clothing
Appropriate for the test product, to ensure the safety of the operator.
3.4.11 Refrigerator/Freezer
A refrigerator or freezer (minimum - 18°C) to store the leachate at low temperature to reduce
degradation of the substances to be analysed and the growth of mircoorganisms in the leachate. The
storage procedure shall follow recommendations from the supplier of the product under test or
EN ISO 5667-3.
6

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SIST-TS CEN/TS 16663:2017
CEN/TS 16663:2016 (E)
3.4.12 Chemical analysis equipment
Analytical equipment appropriate to determine the compounds of interest to be analysed in the
leachate at the desired concentration.
3.4.13 Exposure site
An open area, free from tall vegetation and not excessively influenced by industrial or agricultural
pollution and no obstacle to the rain. Distance to building should be specified in the test report.
3.4.14 Exposure weathering racks
The exposure racks, to which the panels are attached, should be robust to maintain the panels in the
required orientation for the duration of the test. Racks that have been found to be suitable are
illustrated in Annex A.
3.5 Test specimens
...

SLOVENSKI STANDARD
kSIST-TS FprCEN/TS 16663:2016
01-junij-2016
7UDMQRVWOHVDLQOHVQLKL]GHONRY'RORþDQMHHPLVLML]]DãþLWHQHJDOHVDYRNROMH
/HVQLL]GHONLL]SRVWDYOMHQLUD]UHGXXSRUDEHQLVRSRNULWLQLVRYVWLNXVWOHPL
'HOQRWHUHQVNDPHWRGD
Durability of wood and wood-based products - Determination of emissions from
preservative treated wood to the environment - Wooden commodities exposed in Use
Class 3 (Not covered, not in contact with the ground) - Semi-field method
Dauerhaftigkeit von Holz und Holzprodukten - Abschätzung von Emissionen von mit
Holzschutzmitteln behandeltem Holz an die Umwelt - Holzprodukte in Gebrauchsklasse
3 (nicht abgedeckt, ohne Erdkontakt) - Semi-Feldverfahren
Durabilité du bois et des matériaux dérivés du bois - Détermination des émissions dans
l'environnement du bois traité avec des produits de préservation - Produits de base en
bois exposés à la classe d'emploi n° 3 (dans un endroit abrité, n'étant pas en contact
avec le sol) - Méthode semi-terrain
Ta slovenski standard je istoveten z: FprCEN/TS 16663
ICS:
13.020.30 Ocenjevanje vpliva na okolje Environmental impact
assessment
71.100.50 .HPLNDOLMH]D]DãþLWROHVD Wood-protecting chemicals
kSIST-TS FprCEN/TS 16663:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
kSIST-TS FprCEN/TS 16663:2016

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kSIST-TS FprCEN/TS 16663:2016


FINAL DRAFT
TECHNICAL SPECIFICATION
FprCEN/TS 16663
SPÉCIFICATION TECHNIQUE

TECHNISCHE SPEZIFIKATION

April 2016
ICS 13.020.30; 71.100.50 Will supersede CEN/TR 16663:2014
English Version

Durability of wood and wood-based products -
Determination of emissions from preservative treated
wood to the environment - Wooden commodities exposed
in Use Class 3 (Not covered, not in contact with the
ground) - Semi-field method
Durabilité du bois et des matériaux dérivés du bois - Dauerhaftigkeit von Holz und Holzprodukten -
Détermination des émissions dans l'environnement du Abschätzung von Emissionen von mit
bois traité avec des produits de préservation - Produits Holzschutzmitteln behandeltem Holz an die Umwelt -
de base en bois exposés à la classe d'emploi n° 3 (dans Holzprodukte in Gebrauchsklasse 3 (nicht abgedeckt,
un endroit abrité, n'étant pas en contact avec le sol) - ohne Erdkontakt) - Semi-Feldverfahren
Méthode semi-terrain


This draft Technical Specification is submitted to CEN members for Vote. It has been drawn up by the Technical Committee
CEN/TC 38.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a Technical Specification. It is distributed for review and comments. It is subject to change
without notice and shall not be referred to as a Technical Specification.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TS 16663:2016 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
kSIST-TS FprCEN/TS 16663:2016
FprCEN/TS 16663:2016 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Description of the test method . 5
3.1 Principle . 5
3.2 Quality criteria . 5
3.3 Wood preservative . 5
3.4 Apparatus . 6
3.5 Test specimens . 7
3.5.1 General . 7
3.5.2 Species of wood . 7
3.5.3 Quality of wood and wood moisture content . 7
3.5.4 Preparation of test specimens . 8
3.5.5 Number of test specimens . 8
3.5.6 End seal . 8
3.6 Procedure. 8
3.6.1 Product under test . 8
3.6.2 Treatment and handling of test specimens . 8
3.6.3 Untreated controls (optional) . 9
3.6.4 Exposure test site . 9
3.6.5 Duration of the test . 9
3.6.6 Collection of the leachates . 10
3.6.7 Chemical analysis . 10
3.7 Expression of results . 10
4 Test report . 11
Annex A (informative) Test set-up and weather rack . 13
A.1 Vertical exposure . 13
A.2 Horizontal exposure. 15
Annex B (informative) Model treatments . 16
B.1 For preservative intended for superficial treatment . 16
B.2 For preservative intended for penetration treatment . 16
Annex C (informative) Orientation of annual growth rings and accepted heartwood . 17
Annex D (informative) Stability study . 18
Bibliography . 19

2

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kSIST-TS FprCEN/TS 16663:2016
FprCEN/TS 16663:2016 (E)
European foreword
This document (FprCEN/TS 16663:2016) has been prepared by Technical Committee CEN/TC 38
“Durability of wood and wood-based products”, the secretariat of which is held by AFNOR.
This document is currently submitted to the Formal vote.
This document will supersede CEN/TR 16663:2014.
3

---------------------- Page: 5 ----------------------
kSIST-TS FprCEN/TS 16663:2016
FprCEN/TS 16663:2016 (E)
Introduction
The leaching from preservative treated wood into the environment need to be quantified to enable an
environmental risk assessment to be made of the treated wood, e.g. according to the Biocidal Products
Regulation, 528/2012. This document describes a semi-field method for the determination of leachate
from preservative treated wood where the preservative treated wood is not covered and not in contact
with the ground or water (use class 3 according to EN 335).
The method is a semi-field procedure for obtaining water samples (leachate) from treated wood
exposed out of ground contact, during a natural exposure. The quantities of emissions in the leachate
are related to the surface area of the wood and may be used in scenarios for the environmental risk
assessment of the treated wood.
NOTE The leachate can also be tested for eco-toxicological effects (example: OECD 202 testing on Daphnia
sp.).
4

---------------------- Page: 6 ----------------------
kSIST-TS FprCEN/TS 16663:2016
FprCEN/TS 16663:2016 (E)
1 Scope
This Technical Specification specifies a method for determining the leaching of active ingredients or
other compounds from preservative treated wood by a semi-field method for use class 3 (outdoor
above ground). The preservative treated wood can be tested with or without subsequently surface
coating or other water-repellent treatment. The method is applicable to the testing of commercial or
experimental preservatives or paint systems applied to timber by methods appropriate to commercial
practice.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 5667-3, Water quality - Sampling - Part 3: Preservation and handling of water samples (ISO 5667-
3)
3 Description of the test method
3.1 Principle
Panels are treated, assembled and placed outdoors, out of ground contact and exposed to the normal
environmental and ecological factors which affect preservative treated wood so exposed in practice.
The rainwater is retained and the leachate is monitored by chemical analyses of the active ingredients
and/or other compounds.
3.2 Quality criteria
The validity of the analytical method for the substances in question should be determined before
conducting the test:
a) accuracy;
b) specificity;
c) limit of detection (LOD);
d) limit of quantification (LOQ);
e) precision
NOTE EN ISO 5667-3 may give guidance on the preservation and handling of water samples.
3.3 Wood preservative
The test report shall state the name and other designation of the preservative, and the trade or common
name of the active ingredient(s) as defined in the regulation n°528/2012.
Use of a coating is possible (identity and amount of coating used shall be stated in the test report).
5

---------------------- Page: 7 ----------------------
kSIST-TS FprCEN/TS 16663:2016
FprCEN/TS 16663:2016 (E)
3.4 Apparatus
3.4.1 Vessel for receiving water
Laboratory brown glass flask or plastic jars with no impurities that can influence the active ingredient.
NOTE EN ISO 5667-3 gives the good practices to preserve water samples.
The brown glass flask or plastic jars shall be protected from heat and sunlight.
The capacity of the vessels depends on the exposure scenario. If the expected annual precipitation is
approximately 700 mm and the test set-up is placed horizontal 25 l containers are recommended. If the
test set-ups are exposed vertically 5 l containers are recommended.
3.4.2 Gutter, screws, hooks
All materials used to fix and support the panels and collect the rainwater shall be made of inert
materials. Stainless steel has been found to be suitable (see Annex A).
3.4.3 Weather station
A weather station capable of monitoring the quantity of rainfall, the wind direction and wind speed at
the test site shall be used.
3.4.4 Wood working equipment
Equipment capable of producing the desired finish of the surface; e.g. fine sawn or planed.
3.4.5 Condition chamber
Conditioning chamber, well ventilated, controlled at (20 ± 2) °C and (65 ± 5) % relative humidity.
3.4.6 Mixing vessel
3.4.7 Preservative treatment
Equipment suitable for carrying out vacuum, vacuum-pressure, immersion or surface treatment of
specimens.
3.4.8 Balance
A balance capable of weighing to the nearest 0,1 g.
3.4.9 Kiln
A kiln suitable to dry the preservative treated timber after treatment and post treatment conditioning, if
required. The drying procedure shall follow recommendations from the supplier of the product under
test.
3.4.10 Safety equipment and protection clothing
Appropriate for the test product, to ensure the safety of the operator.
3.4.11 Refrigerator/Freezer
A refrigerator or freezer (minimum - 18°C) to store the leachate at low temperature to reduce
degradation of the substances to be analysed and the growth of organisms in the leachate. The storage
procedure shall follow recommendations from the supplier of the product under test or EN ISO 5667-3.
6

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kSIST-TS FprCEN/TS 16663:2016
FprCEN/TS 16663:2016 (E)
3.4.12 Chemical analysis equipment
Analytical equipment appropriate to determine the compounds of interest to be analysed in the
leachate.
3.4.13 Exposure site
An open area, free from tall vegetation and not excessively influenced by industrial or agricultural
pollution. No obstacle to the rain has to exist. Distance to building should be précised in the test report.
3.4.14 Exposure weathering racks
The exposure racks, to which the panels are attached, should be robust to maintain the panels in the
required orientation for the duration of the test. Racks that have been found to be suitable are
illustrated in Annex A.
3.5 Test specimens
3.5.1 General
The test specimens who make up the test panel are representative or typical of commercial timber, and
exposed to mimic service exposure (e.g. vertical spruce shiplap cladding. Alternatively the test
specimens may be selected to be a ‘realistic worst case’ estimation of the emission for a wood
preservative in Use Class 3.
3.5.2 Species of wood
The wood species shall be typical of the wood species used for the efficacy testing of wood
preservatives, e.g. sapwood of Pinus sylvestris (L) (Scots pine).
Additional tests may be made using other species; this should be stated in the test report.
3.5.3 Quality of wood and wood moisture content
The quality of wood and wood moisture content shall be typical of the wood used commercially or use
sound straight-grained wood. Material of resinous appearance shall be avoided. Use wood with between
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